Compare commits
No commits in common. "6675f2ccb984c7d5fdd591aba7362ed66d4b515e" and "2773bfc9f47a8864d88314f919ff10ba9511e617" have entirely different histories.
6675f2ccb9
...
2773bfc9f4
2
.gitignore
vendored
2
.gitignore
vendored
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__pycache__
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*.pyc
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from chordpro.base import Song # noqa
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from argparse import ArgumentParser
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from chordpro.base import Song
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from chordpro.render.html import render
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if __name__ == '__main__':
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parser = ArgumentParser()
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parser.add_argument('input', metavar='FILENAME', help='Input ChordPro file')
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parser.add_argument('-o', '--output', metavar='FILENAME', help='Output to a file')
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args = parser.parse_args()
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song = Song(args.input)
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output = render(song)
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if args.output:
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with open(args.output, 'w') as html_file:
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html_file.write(output)
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else:
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print(output)
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import re
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from hyphen import Hyphenator
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from chordpro.constants import KNOWN_DIRECTIVES, KNOWN_VERSE_TYPES
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DIRECTIVE = re.compile(r'\{(.*?): *(.*?)\}')
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START_OF = re.compile(r'\{start_of_(' + '|'.join(KNOWN_VERSE_TYPES) + r')(: *(.*?))?\}')
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END_OF = re.compile(r'\{end_of_(' + '|'.join(KNOWN_VERSE_TYPES) + r')\}')
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CHORD_WORD = re.compile(r'(.*?)\[(.*?)\]')
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HYPHEN_CACHE = {}
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SYLLABLE_EXCEPTIONS = {
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'outer': ['out', 'er']
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}
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class MismatchedVerseType(Exception):
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def __init__(self, line_number, expected_type):
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super().__init__('Mismatched verse type on line {}, expected {}'.format(line_number, expected_type))
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class Directive(object):
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def __init__(self, line=None):
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self.directive = None
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self.info = None
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if line:
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self.parse(line)
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def parse(self, line):
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"""Parse a directive line and return a Directive object"""
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match = DIRECTIVE.match(line)
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if not match:
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return None
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for known_directive in KNOWN_DIRECTIVES:
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if match.group(1) in known_directive:
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self.directive = match.group(1)
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self.info = match.group(2)
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@staticmethod
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def is_directive(line):
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"""Check if a line in a file contains a directive"""
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match = DIRECTIVE.match(line)
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if match:
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for known_directive in KNOWN_DIRECTIVES:
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if match.group(1) in known_directive:
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return True
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return False
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class Syllable(object):
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def __init__(self, syllable, chord=None):
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self.syllable = syllable
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self.chord = chord
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class Word(object):
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def __init__(self, word=None):
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self.syllables = []
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if word:
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self.parse(word)
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def parse(self, word):
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"""Parse a word into syllables with chords.
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1. Split word by chords
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2. Rejoin word, split into syllables
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3. Track down syllable before chord
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4. Add chord to syllable
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"""
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word_parts = []
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chords = [''] # Due to regex, chords will always be 1 behind, so create an empty item to bump them along
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match = CHORD_WORD.match(word)
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while match:
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word_parts.append(match.group(1))
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chords.append(match.group(2))
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word = word.replace(match.group(0), '')
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match = CHORD_WORD.match(word)
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# If there are any left over portions, just add them as the rest of the word
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word_parts.append(word)
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whole_word = ''.join(word_parts)
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self.syllables = []
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if whole_word in SYLLABLE_EXCEPTIONS:
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# words with a 2-letter ending syllable currently do not get recognised by PyHyphen
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sylls = SYLLABLE_EXCEPTIONS[whole_word]
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else:
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if 'en_US' not in HYPHEN_CACHE:
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HYPHEN_CACHE['en_US'] = Hyphenator('en_US')
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if 'en_GB' not in HYPHEN_CACHE:
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HYPHEN_CACHE['en_GB'] = Hyphenator('en_GB')
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hyphenator = HYPHEN_CACHE['en_US']
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# Do a fallback for en_GB
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if not hyphenator.pairs(whole_word):
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if HYPHEN_CACHE['en_GB'].pairs(whole_word):
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hyphenator = HYPHEN_CACHE['en_GB']
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sylls = hyphenator.syllables(whole_word)
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if not sylls:
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sylls = [whole_word]
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for syll in sylls:
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syllable = Syllable(syll)
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for i, part in enumerate(word_parts):
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if part.startswith(syll):
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syllable.chord = chords[i]
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break
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self.syllables.append(syllable)
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class Line(object):
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def __init__(self, line=None):
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if line:
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self.words = [Word(word) for word in line.split(' ')]
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else:
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self.words = []
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class Verse(object):
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def __init__(self, type_, title=None, content=None):
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self.type_ = type_
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self.title = title or type_.title()
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self.lines = [Line(line) for line in content.splitlines()] if content else []
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def add_line(self, line):
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self.lines.append(Line(line))
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@classmethod
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def parse(cls, line):
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"""Parse the line into a verse type"""
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match = START_OF.match(line)
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verse = cls(match.group(1))
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if len(match.groups()) > 1:
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verse.title = match.group(3)
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return verse
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@staticmethod
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def is_start_of_verse(line):
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return START_OF.match(line) is not None
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@staticmethod
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def is_end_of_verse(line, type_=None):
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match = END_OF.match(line)
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if not type_:
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return match is not None
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return match.group(1) == type_
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class Metadata(object):
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def __init__(self):
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self._directives = {}
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def add(self, directive):
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self._directives[directive.directive] = directive
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def get(self, key):
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"""Grab the title from the title directive"""
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return self._directives[key].info if self._directives.get(key) else None
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class Song(object):
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def __init__(self, filename=None):
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self.filename = filename
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if self.filename:
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self.parse(self.filename)
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def parse(self, filename):
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self.metadata = Metadata()
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self.verses = []
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with open(filename) as song_file:
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is_verse = False
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current_verse = None
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for line_number, line in enumerate(song_file):
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if Directive.is_directive(line):
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self.metadata.add(Directive(line))
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elif Verse.is_start_of_verse(line):
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is_verse = True
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current_verse = Verse.parse(line)
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elif Verse.is_end_of_verse(line):
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if not Verse.is_end_of_verse(line, current_verse.type_):
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raise MismatchedVerseType(line_number, current_verse.type_)
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self.verses.append(current_verse)
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is_verse = False
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current_verse = None
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elif is_verse:
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current_verse.add_line(line.strip())
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@ -1,66 +0,0 @@
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import re
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from chordpro.constants import CHORD_SUFFIXES, ENGLISH_NOTES, GERMAN_NOTES, NEOLATIN_NOTES
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_chord_cache = {}
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_line_cache = {}
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def _get_chord_regex(notes):
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"""
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Create the regex for a particular set of notes
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:param notes: The regular expression for a set of valid notes
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:return: An expanded regular expression for valid chords
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"""
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chord = notes + CHORD_SUFFIXES
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return '(' + chord + '(/' + chord + ')?)'
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def _get_chord_match(notes):
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"""
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Construct chord matching regular expression object
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:param notes: The regular expression for a set of valid notes
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:return: A compiled regular expression object
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"""
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return re.compile(r'\[' + _get_chord_regex(notes) + r'\]')
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def _get_line_match(notes):
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"""
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Construct a chord line matching regular expression object
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:param notes: The regular expression for a set of valid notes
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:return: A compiled regular expression object
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"""
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return re.compile(r'\[' + _get_chord_regex(notes) + r'\]([\u0080-\uFFFF,\w]*)'
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r'([\u0080-\uFFFF\w\s\.\,\!\?\;\:\|\"\'\-\_]*)(\Z)?')
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def _get_chords_for_notation(notation):
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"""
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Get the right chord_match object based on the current chord notation
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"""
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if notation not in _chord_cache.keys():
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if notation == 'german':
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_chord_cache[notation] = _get_chord_match(GERMAN_NOTES)
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elif notation == 'neo-latin':
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_chord_cache[notation] = _get_chord_match(NEOLATIN_NOTES)
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else:
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_chord_cache[notation] = _get_chord_match(ENGLISH_NOTES)
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return _chord_cache[notation]
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def _get_line_for_notation(notation):
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"""
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Get the right chord line match based on the current chord notation
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"""
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if notation not in _line_cache.keys():
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if notation == 'german':
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_line_cache[notation] = _get_line_match(GERMAN_NOTES)
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elif notation == 'neo-latin':
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_line_cache[notation] = _get_line_match(NEOLATIN_NOTES)
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else:
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_line_cache[notation] = _get_line_match(ENGLISH_NOTES)
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return _line_cache[notation]
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@ -1,29 +0,0 @@
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KNOWN_DIRECTIVES = [
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('title', 't'),
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('subtitle', 'st'),
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('artist',),
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('composer',),
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('lyricist',),
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('arranger',),
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('copyright',),
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('album',),
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('year',),
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('key',),
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('time',),
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('tempo',),
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('duration',),
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('capo',),
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('meta',)
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]
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KNOWN_VERSE_TYPES = [
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'verse',
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'chorus',
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'bridge',
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'tab',
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'grid'
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]
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ENGLISH_NOTES = '[CDEFGAB]'
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GERMAN_NOTES = '[CDEFGAH]'
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NEOLATIN_NOTES = '(Do|Re|Mi|Fa|Sol|La|Si)'
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CHORD_SUFFIXES = '(b|bb)?(#)?(m|maj7|maj|min7|min|sus)?(1|2|3|4|5|6|7|8|9)?'
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SLIM_CHARS = 'fiíIÍjlĺľrtť.,;/ ()|"\'!:\\'
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@ -1,48 +0,0 @@
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CHORD = '<td class="chord">{}</td>'
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SYLLB = '<td class="syllable">{}</td>'
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LINE = '<table class="line" border="0" cellpadding="0" cellspacing="0"><tr class="chords-line">{}</tr><tr ' \
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'class="lyrics-line">{}</tr></table>'
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VERSE = '''<section class="verse">
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<h4 class="verse-name {verse_type}">{verse_name}</h4>
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<div class="verse-body">
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{verse_body}
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</div>
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</section>'''
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TITLE = '<section class="metadata"><h1 class="title">{title}</h1><h3 class="artist">{artist}</h3></section>'
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HTML = '''<html>
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<head>
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<title>{title}</title>
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<style>
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.verse-name {{ font-weight: bold; margin-bottom: 0; text-transform: uppercase; }}
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.verse-body {{ padding-left: 2rem; }}
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.chord {{ font-weight: bold; text-align: center; }}
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</style>
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</head>
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<body>
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{body}
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</body>
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</html>'''
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def render(song):
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"""Render a song to HTML"""
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rendered_verses = []
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for verse in song.verses:
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rendered_lines = []
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for line in verse.lines:
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rendered_chords = []
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rendered_syllables = []
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for word_counter, word in enumerate(line.words):
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is_last_word = (word_counter + 1) == len(line.words)
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for syll_counter, syllable in enumerate(word.syllables):
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is_last_syllable = (syll_counter + 1) == len(word.syllables)
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rendered_chords.append(CHORD.format(syllable.chord or ' '))
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rendered_syllables.append(SYLLB.format(
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syllable.syllable + (' ' if is_last_syllable and not is_last_word else '')))
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rendered_lines.append(LINE.format(''.join(rendered_chords), ''.join(rendered_syllables)))
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rendered_verses.append(VERSE.format(verse_type=verse.type_ or '', verse_name=verse.title,
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verse_body='\n'.join(rendered_lines)))
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title = song.metadata.get('title') or 'Song'
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metadata = TITLE.format(title=title, artist=song.metadata.get('artist') or song.metadata.get('composer') or '')
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body = metadata + '\n' + '\n'.join(rendered_verses)
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return HTML.format(title=title, body=body)
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Loading…
Reference in New Issue
Block a user